Hi Matthew, I learnt a lot from your video. The issue I face with the similar circuit is that when I measure the voltage over the second resistance (the one that is connected to the ground), the wave form is triangle shape and is not in the square form (incoming signal). Do you have any thoughts about why it is happening? Thank you!

10:35 How would Vaey be equal to 90m/s Isn't sin(210)=-1/2?

how does an antenna work when placed in any angle or direction. The electromagnetic wave isn't propagating linearly along a single axis..

thank you, youre a life saver. the concepts were adequetely simplified and explailned really well 😀

Well one could say you are filtering the lower sideband away with the diode turned this way, and sampling / converting the high frequens into low frequens to be heard via the speaker.

Sir best teaching tamil nadu student

Fantastic sir for tamilnadu students in india

Great explanation, many thanks

Hi.In don't understand if the input radio signal is oscilating în lc tuner or it goes în diode.Can you explain me please?I don't find answer on google

his explantion is wrong....when the currnet after diode hit the capcitor...the first plate is negatively charged and not positive..

What is the function of the diode, though? Is it just to block very low amplitude signals? 👍Edit: Oh I see you describe it in part 7. Thank you 😄

The best explanation of LC in a tuner i've found! Thank you!

thank you its fun to experiment with thiss

thanks for this video.i am trying to make a I-V curve tracer on a breadboard to test the characteristics of various components.i have xy on my scope.i get good voltage on channel placed across my DUT,but I am stumped on getting the current thru the device on channel 2.do you have a video on placement of scope probes on breadboard to measure current thru the DUT? thanks John

you can't twist your right hand around like that, you will probably break it. there is no way anyone can point their right thumb up and point middle finger to the right and the index finger towards you?? that's not how human fingers can move. left hand could work though: thumb up, index to the right, and middle towards you. or you could swap N and S, or reverse the current flow. then the right hand would work.

Hi Matthew, thank you for your video. I know this video is relatively old at this point, but I'm hoping you might still be willing to help answer a question or two. In the tuner, are the capacitor and inductor adjusted such that they are prepared to receive exactly one length/period of oscillating current? Almost like they have exact specifications, and if an analogy was appropriate, almost like a lock with a key, or a hole to be filled? The size of the lock or hole would be the capacitance and inductance/maximized apparent resistance. So that, in essence, the tuner is a filter, or capturer, that only snags certain periods of oscillating current from all the frequencies of oscillating current sent from the antenna. And ultimately it only snags certain oscillating currents based on how much charge can accumulate at the capacitor or inductor i.e. adjusting capacitance and inductance i.e. apparent resistance. Sorry this is kinda long, but I think I was sort of understanding it as I typed it out. Please let me know if I'm actually just blatantly wrong in my understanding. Thank you so much for the video.

This is gold I fully understand how the tuner works now! Thank you very much great explanation

Thank you so much for uploading this playlist! I have wanted to learn about radios, but most other vids on youtube were too advanced. This was an excellent introduction.

Is there a mathematical demonstration that proves that those two angles are actually the same?

Thanks that helped a lot! I never knew that the 2nd probe was connected to the ground

Very good explanations. Straight to the point. Thank you!

Thank you so much for this video series

The best starter course so far.

where is the link you mentioned at 9:27 for the other design variations? thank you

Thanku this was helpful for me👍

Thank you so much, Professor. Greetings from Canada

Thank you a lot.

Thanks for the material, very useful. Can you please explain what medium acts as "ground" in hand held battery charged radios? Where does current caused by all these unwanted frequencies escape to?

I wish I was one of your students

Thanks. I watched the whole radio series and much appreciated the lessons. I’m a ham who is beginning to build my own simple circuits for fun and this was really helpful in understanding how they work. Thank you!

I like how the start of each episode sounds like radio static, very appropriate

You are the man

Wow what a great lecture very informative and easy to follow without loosing the details Thank you so much

Very well and Thank you

Thanks

video is in narrow format or not 16:9 , childist amateur video , not worth it for me.

Thank you for putting this series up. You really brought all of the components together. This is the clearest I've been able to come by.

Awesome video, very informative, thank you!

Absolutely fantastic series, thank you. Could you let me know what book/s you would recommend, at this level, so I could continue to learn about basic AM and FM radios. I think I have found a new hobby.

Very nice information. Thank you for sharing

Congratulations Mr. Fairbanks: this is the best explenation about how radio and its single components work I have ever seen/listened! I am saving this playlist between my favourites so I hope to find it again in the future! Great job! 🤝🏼

great vids mate

Very nice 👌 information

Very nice and informative. Thank u

Why don't radio schematics ever show where the outer shield of the coax goes? Thanks for sharing!

great topic and explanation! new sub indeed! TY!

thank u ❤

Thing are finger crossed at least to some sort of new normal. I'm going to make tatoo with these words. Great videos!)

This video you've made here has helped me to find the peace of mind that I've been searching for so long. Lacking words to express my gratitude..

Nice attempt , highly motivative